Lerner, M. América as a civilization (8a ed.).
Lua i Stíl Chicago (17ú heag.)Lerner, Max. América as a Civilization. 8a ed.
Lua MLA (8ú heag.)Lerner, Max. América as a Civilization. 8a ed.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.